#nav_noawrap{
		margin:0 auto; padding:0;
		background:transparent url(cssimg/bg_mb_acad.jpg) center 0 repeat-y;
		width:950px;
	}
	#nav_noawrap #nav_noa{
		margin:0 auto; padding:0;
		height:175px; width:896px;
		background:transparent url(cssimg/bg_noa_mouse_event.jpg) 0 0 no-repeat;
	}
	#nav_noawrap #nav_noa ul{
		margin:0; padding:0;
		list-style:none;
	}
	#nav_noawrap #nav_noa ul li{
		float:left;
		margin:0; padding:0;
		text-indent:-9999px;
	}
	#nav_noawrap #nav_noa ul li a{ margin:0; padding:0; display:block; }
	#nav_noawrap #nav_noa ul li a.nlevel{ width:273px; height:175px; }
	#nav_noawrap #nav_noa ul li a.nlevel:hover{ background:transparent url(cssimg/bg_noa_mouse_event.jpg) 0 -175px no-repeat; }
	#nav_noawrap #nav_noa ul li a.olevel{ width:326px; height:175px; }
	#nav_noawrap #nav_noa ul li a.olevel:hover{ background:transparent url(cssimg/bg_noa_mouse_event.jpg) -273px -175px no-repeat; }
	#nav_noawrap #nav_noa ul li a.alevel{ width:290px; height:175px; }
	#nav_noawrap #nav_noa ul li a.alevel:hover{ background:transparent url(cssimg/bg_noa_mouse_event.jpg) -599px -175px no-repeat; }